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Circuit Test (Galant)

  1. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Disconnect instrument cluster harness connector. Connect voltmeter between ground and instrument cluster harness-side connector terminal No. 15 (White wire). Start and idle engine. Voltmeter should read about 5 volts. If voltage is as specified, problem is intermittent. If voltage is not as specified, go to next step.
  2. Check instrument cluster harness connector. Repair as necessary. If connector is okay, go to next step.
  3. Check circuit between instrument cluster harness connector and 17-pin engine harness connector. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, go to next step.
  4. Check voltage between ground and instrument cluster harness-side connector terminal No. 1 (Red/Black wire). If battery voltage is present, go to step  7. If battery voltage is not present, go to next step.
  5. Check harness connector to instrument cluster. Repair as necessary. If connector is okay, check circuit between instrument cluster and ignition switch. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, go to next step.
  6. Check voltage between ground and instrument panel harness connector terminal No. 29 (Black/White wire). See WIRING DIAGRAMS . Battery voltage should be present. If battery voltage is present, problem is intermittent. If battery voltage is not present, go to next step.
  7. Check for damaged instrument panel harness connector terminals. Repair as necessary. If connectors are okay, go to next step.
  8. Check circuit between instrument panel harness connector terminal No. 29 (Black/White wire) and ignition switch. See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, go to next step.
  9. Check continuity between body ground and instrument panel harness connector terminal No. 30 (Red/Black wire). If continuity exists, problem is intermittent. If continuity does not exist, go to next step.
  10. Check circuit between body ground and instrument panel harness connector terminal No. 30 (Black wire). See WIRING DIAGRAMS . Repair as necessary. If circuit is okay, replace tachometer.
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